MESON Chess Problem Database

Problem Display
PID: 259386 (1b1n1KQn/1N5P/1R3P2/5kNP/2P2rpP/3qPb2/5P2/BB6 w - - 0 1)

Iuncu, Filaret

Buletin Problemistic, 1990

1b1n1KQn/1N5P/1R3P2/5kNP/2P2rpP/3qPb2/5P2/BB6

#2

14 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6+
      • 2.Sxd6#
    • 1...Ba7
      • 2.Sd6#
    • 1...Sc6
      • 2.Qe6#
    • 1...Se6+
      • 2.Qxe6#
    • 1...Sxb7
      • 2.Qe6#
    • 1...Sg6+
      • 2.Qxg6#
    • 1...Sf7
      • 2.Qg6#
  • Tries
    • 1.Qd5+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Bxd5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Sg3#
      • 1...Qa3+
        • 2.Sed6#
      • 1...Qd6+
        • 2.Sexd6#
      • 1...Bd6+
        • 2.Sexd6#
      • 1...Se6+
        • 2.Qxe6#
      • 1...Sg6+
        • 2.Qxg6#
      • 1...Kxe4
        • 2.Qd5#
      • 1...Qxe4
        • 2.Qg5#
      • 1...Rxe4
        • 2.Qg5#
      • 1...Bxe4
        • 2.Qg5#
      • 1...Qc3
        • 2.Qg5#
      • 1...Qd4
        • 2.Qg5#
      • 1...g3
        • 2.Sxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 4
  • Sets
    • B(f);CHECK,N_GUARD::S(K),XB(f)
    • B(f);N_GUARD::S(K)
    • S(g);N_GUARD::QAB1(N)
    • S(g);CHECK,N_GUARD::QAB1(N),XS(g)
    • S(g);N_GUARD,XS(K)::QAB1(N)
    • S(h);CHECK,N_GUARD::QAB1(N),XS(h)
    • S(h);N_GUARD::QAB1(N)
  • Tries
    • Try
      • Q(N);CHECK
      • Vars
        • B(f);N_GUARD,P_SPINB(f)::QAR1(N),XB(f)
      • Refutation
        • B(b);XQ(N)
  • Actual
    • S(G);N_PINQ(a)
    • Threat
      • S(G)
    • Vars
      • Q(a);CHECK::B(B)+S(G),DCHECK
      • Q(a);CHECK::B(B)+S(G),DCHECK,XQ(a)
      • B(f);CHECK,N_GUARD::S(G),XB(f)
      • S(g);CHECK,N_GUARD::QAB1(N),XS(g)
      • S(h);CHECK,N_GUARD::QAB1(N),XS(h)
      • K(e);P_PINP(J),P_SPINQ(a),S_CUTB(f),S_FLIGHT,XS(G)::QAB1(N)
      • Q(a);P_SPINQ(a),XS(G)::QAR1(N)
      • R(c);SBLOCK,XS(G)::QAR1(N)
      • B(b);SBLOCK,XS(G)::QAR1(N)
      • Q(a);::QAR1(N)
      • P(d);::S(G),XP(d)
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Developed and maintained by Brian Stephenson.
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